Highest temperature in Shanghai on July 21?

Platform comparison

Market context

Shanghai's summer climate in late July presents consistently hot conditions, with the city experiencing peak heat during this period. Historical records from Shanghai Pudong International Airport show that maximum temperatures in the 32–35°C range are typical for mid-to-late July, though readings occasionally exceed 36°C during particularly intense heat waves. The settlement mechanism relies on Wunderground's historical weather data for the specific station, which maintains detailed hourly observations throughout the day.

Comparable July conditions from recent years provide a baseline for assessing temperature ranges. Data from 2023 and 2024 show that Shanghai recorded highs between 33–37°C during similar dates, with occasional spikes above 38°C during anomalous heat events. The current 0% crowd probability suggests traders are either uncertain about specific temperature thresholds in the market's resolution brackets or expect conditions significantly below historical norms—an outcome that would require unusual atmospheric patterns or data recording anomalies.

Traders should monitor weather forecasts from the China Meteorological Administration and international models (GFS, ECMWF) as July 2026 approaches, as these provide the most reliable 10–14 day outlooks for East Asian summer conditions. Any significant atmospheric systems—monsoon fluctuations, typhoon activity, or blocking high-pressure patterns—could shift temperatures materially. The settlement window closes at midday UTC on 21 July, so final observations from the airport station will determine resolution within hours of market closure.

Methodology

Sports-specific comparison page for Highest temperature in Shanghai on July 21?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.